JPH0357425Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a half-split type roll, and more particularly to a roll formed by combining roll halves divided in the axial direction and provided with a nonwoven fabric or brush material on the outer periphery.

BACKGROUND TECHNOLOGY Rolls that are generally used can be roughly divided into two types: half-split rolls, which are a combination of a pair of roll halves split in the axial direction, and hollow cylindrical rolls.
There are different types. Furthermore, the uses of such a roll include, for example, polishing, cleaning, and grinding.
In the process of manufacturing a printed circuit board, a circuit is formed on the board by etching or the like, and then the surface of the circuit pattern on the board is polished using a rotating roll. In this way, a roll used in a device for polishing the surface of a substrate, for example, consists of a pair of roll halves in which a nonwoven fabric for polishing the substrate surface is directly adhesively fixed to the outer periphery of a shaft half divided in the axial direction. It was designed to be used by attaching it to the rotating shaft of the device.

Problems to be Solved by the Invention However, in the roll with the above structure, the nonwoven fabric is directly bonded to the shaft half, so if the nonwoven fabric becomes worn, the roll half can be removed from the device and a new nonwoven fabric installed. The roll halves were attached. In addition, the shaft half is made of aluminum and processed into a predetermined shape and is expensive, so when the nonwoven fabric is worn out, it is recycled and used instead of being thrown away. Therefore, with conventional rolls, when the nonwoven fabric wears out, the rolls are regenerated after removing the pair of roll halves from the equipment, so the manufacturer collects the used rolls and scrapes the worn nonwoven fabric from the shaft half. After that, it was necessary to adhere a new nonwoven fabric to the outer periphery of the shaft half and ship the recycled roll to the user.

For this reason, conventional rolls have had the disadvantage that it takes a great deal of effort and time to regenerate the used rolls. In addition, the user cannot polish the surface of the printed circuit board until it is recycled, resulting in the inconvenience that the polishing process stops. Furthermore, in order to avoid stopping the polishing process, it was necessary to prepare a plurality of expensive shaft halves. Furthermore, when different types of coarse mesh (count) of the nonwoven fabric are used, it is necessary to prepare shaft halves for each type, which places a heavy economic burden on the user.

Therefore, an object of the present invention is to provide a roll that eliminates the above-mentioned drawbacks.

Means and Effects for Solving the Problems The present invention has a hollow part into which a rotating shaft is inserted, and a plurality of screw insertion holes penetrating from the inner peripheral surface of the hollow part to the outer peripheral surface, and a pair of shaft halves divided into two parts; and the pair of shaft halves are fastened together so that the rotating shaft is inserted through the hollow part and the outer periphery of the rotating shaft is held from two directions. a fastening member; and a pair of center cores, which are made by dividing a cylindrical body made of synthetic resin in the axial direction and have a plurality of screw holes with female threads formed at positions corresponding to the screw insertion holes on the inner peripheral surface. a pair of nonwoven fabrics or brush materials, each of which has a cylindrical body formed to fit on the outer periphery of the pair of core halves, which is divided in the axial direction, and which is adhesively fixed to the outer periphery of the pair of core halves; and inserting the core half into the screw insertion hole from the hollow part of the shaft half and screwing into the screw hole of the core half to fix the nonwoven fabric or brush material to the shaft half. a plurality of fixing screws fixed to the outer periphery of the nonwoven fabric or brush material, when worn, the nonwoven fabric or brush material is removed from the shaft half together with the center core half, and the unused nonwoven fabric or brush material is fixed. The core half is fixed to the outer periphery of the shaft half, and can be replaced together with the core half when replacing the nonwoven fabric or brush material, so there is no need to recycle the core half. It is designed to be treated as a consumable item.

Example Figures 1 and 2 show the first roll of the present invention.
An example is shown. In both figures, roll 1 is the rotating shaft 2 of a device that polishes the surface of printed circuit boards (not shown), etc.
It is installed and used. The roll 1 is formed by combining a pair of roll halves 3 and 4 that can be divided along the axial direction.

As shown in FIG. 3, one roll half 3 includes a shaft half 5 directly fixed to the rotating shaft 2, a core half 6 removably fixed to the shaft half 5, and a core half 6. 6 and a nonwoven fabric 7 adhered to the outer periphery of the material. Note that the other roll half 4 is composed of a shaft half 8, a core half 9, and a nonwoven fabric 10, similarly to the roll half 3 having the above configuration, so a description thereof will be omitted.

The shaft half 5 is made of aluminum, has a central portion 5a having an arcuate cross-section, fixed portions 5b, 5b at both ends, and a recess 5c forming a hollow portion into which the rotating shaft 2 is inserted on the inner periphery of the central portion 5a. has. In addition, the fixed part 5
A hole 5d through which a screw (fastening member) 11 for fixing the shaft half body 5 to the rotating shaft 2 is inserted is bored in each of the holes b and 5b. Moreover, the central part 5a has a recessed part 5 on the inner periphery than the outer periphery.
Through holes 5e ₁ to 5 as screw insertion holes penetrating through c
Has e ₄ . The through holes 5e ₁ to e ₄ are provided near both peripheral edges of the central portion 5a, and are provided at predetermined intervals along the longitudinal direction.

The core half body 6 is molded from synthetic resin,
An inner periphery 6 that can fit into the outer periphery of the center portion 5a of the shaft half 5
It has a. Further, the core half body 6 is formed by dividing a cylindrical body in the axial direction, and the inner periphery 6a is provided with threaded holes 6b ₁ to 6b ₄ that penetrate the outer periphery and have internal threads formed inside thereof. . In addition, each screw hole 6 of the core half body 6
b ₁ to 6b ₄ are provided at positions corresponding to the respective through holes 5e ₁ to 5e ₄ of the shaft half body 5, and are provided at intervals such that they can face each other.

The nonwoven fabric 7 has an arcuate cross section, and is adhesively fixed with its inner periphery 7a fitted to the outer periphery of the core half 6.

Here, the procedure for attaching the core half body 6 having the nonwoven fabric 7 integrally fixed to its outer periphery to the rotating shaft 2 of the apparatus will be explained.

First, a core half body 6 with a nonwoven fabric 7 adhesively fixed to the outer periphery is prepared in advance. As shown in FIG. 4, the nonwoven fabric 7
are brought into contact with the inner periphery 6a of the core half body 6 to which are adhesively fixed. Next, insert the screw 12 for fixing the center half into the shaft half 5.
Through holes 5e ₁ to 5e ₄ from the concave portion 5c side on both sides of the peripheral edge of
and screw into the screw holes 6b ₁ to 6b ₄ of the core half body 6. Therefore, the core half 6 is firmly fixed to the outer periphery of the center portion 5a of the shaft half 5 by eight screws 12 on both sides of the peripheral edge. Note that the core half body 9 to which the nonwoven fabric 10 is adhered is also screwed to the other shaft half body 8 in the same manner as described above. The roll halves 3 and 4 assembled in this manner are opposed to each other with the rotating shaft 2 interposed therebetween, as shown in FIGS. 1 and 2. Then, insert the screw 11 through the hole 5d of the fixed part 5b and
is inserted through the hole 2a and screwed into the screw hole 8a of the shaft half 8.

Therefore, the pair of roll halves 3 and 4 have screws 1
1 to the fixing portions 5b and 8b at both ends thereof, the rotary shaft 2 is fixed so as to sandwich the outer periphery from two directions. Although the head of the screw 12 protrudes from the recesses 5c and 8c of the shaft halves 5 and 8, there is no risk of it coming into contact with the rotating shaft 2.

Next, the roll 1 is used to produce nonwoven fabrics 7, 10.
This section explains the replacement work when the is worn out.

When the nonwoven fabrics 7 and 10 are worn, temporarily tighten the screws 1.
1 and remove the roll halves 3 and 4 from the rotating shaft 2. Then, the screws 12 are loosened from the inside of the roll halves 3, 4, and the core halves 6, 9 are removed from the shaft halves 5, 8 together with the worn nonwoven fabrics 7, 10. In this way, the used nonwoven fabrics 7, 10 are removed from the shaft halves 5, 8 together with the core halves 6, 9 as one component. Therefore, the core halves 6, 9 are made of nonwoven fabrics 7, 10.
It can also be treated as a consumable item.

Next, after attaching other core halves 6, 9 provided with new nonwoven fabrics 7, 10 to the outer periphery of the shaft halves 5, 8 with screws 12 as described above, the roll halves 3,
4 is fixed to the rotating shaft 2. Therefore, if a plurality of core halves 6, 9 provided with new nonwoven fabrics 7, 10 are prepared, new nonwoven fabrics 7, 10 can be immediately prepared.
can be exchanged for Furthermore, since only one set of the expensive shaft halves 5 and 8 is required, the economic burden on the user is small.
Moreover, it is advantageous for the manufacturer to take over the worn rolls, recycle them, and then ship them, saving labor and labor.

In addition, since the core halves 6 and 9 are inexpensively molded from synthetic resin, etc., the worn nonwoven fabrics 7 and 10
Even if you throw it away, the economic loss will be small. For this reason, for example, multiple types of nonwoven fabrics 7 with different roughness,
If 10 is prepared in advance, it is possible to easily switch to a roll provided with a nonwoven fabric of a desired count, and it is possible to handle processes involving a wide variety of products. Further, by preparing different types of nonwoven fabrics 7 and 10 with different hardnesses or elasticities, it is possible to easily replace the roll with a roll having a desired elasticity depending on the application.

Figures 5 and 6 show the second roll of the present invention.
An example is shown. In both figures, the roll 21 is attached to the rotating shaft 2 by combining a pair of roll halves 22 and 23. As shown in FIG. 6, the center half body 24 of the roll half body 22 has engaging recesses 24a ₁ , 24 on the outer periphery.
a ₂ and engaging convex portions 24b ₁ to 24b ₃ . The nonwoven fabric 25 has an engaging recess 24 of the core half body 24 on its inner periphery.
Convex portions 25a ₁ , 25a ₂ that fit into _{a 1} , 24a ₂ and concave portions 25b 1 to ₂₅ that engage convex portions 24b ₁ to 24b ₃ fit into
b has ₃ . That is, the nonwoven fabric 25 has convex portions 25a ₁ , 25a ₂ and concave portions 25b ₁ to 25b ₃ on the inner circumference side, and engagement concave portions 24a ₁ , 24a ₂ and engagement convex portions 24b ₁ to 24b ₃ on the outer circumference of the core half body 24. It is fixed with adhesive in the fitted state.

Note that the engagement recesses 24a ₁ , 24a ₂ and the engagement protrusion 24
_b1 to _24b3 , convex portions _25a1 , _25a2 , and concave portions _25b1
~ _25b3 are engaged at their respective sharp corners and remain engaged with each other even if the adhesive peels off during use. Therefore, the nonwoven fabric 25 has adhesive, engaging recesses 24a ₁ , 24a ₂ , and engaging protrusions 24b ₁ to 24b _{3 .}
It is firmly fixed to the core half body 24 by the engagement of the convex portions 25a ₁ , 25a ₂ and the convex portions 25b ₁ to 25b ₃ .

Although the above description has been made using a nonwoven fabric, the present invention is not limited to this. For example, the brush material may be flocked to the core half, and when the brush material wears out, the brush material may be replaced together with the core half. Further, by preparing a plurality of types of brush materials of different materials, it is possible to easily change the type of brush material so that it can be immediately adapted to many uses. In this case as well, since only one set of shaft halves is required, the economic burden on the user is small.

Effects of the invention As described above, the roll according to the present invention, for example, as in the conventional case, when the nonwoven fabric or brush material wears out, it is removed from the shaft half together with the core half, and the unused nonwoven fabric or brush material is fixed. Since the core half is fixed to the outer periphery of the shaft half, it can be replaced together with the core half when replacing the nonwoven fabric or brush material, so there is no need to recycle the core half and it can be treated as a consumable item. can. Therefore, in order to recycle expensive aluminum shaft halves, manufacturers collect worn nonwoven fabric or brush material shaft halves, or they peel off the glued nonwoven fabric from the recovered shaft halves and replace them with new nonwoven fabric. This saves a lot of effort in delivering the roll to the user after gluing, and the user does not have to interrupt work for long periods of time while the roll is played.
Alternatively, if a plurality of expensive shaft halves are prepared, such inconveniences can be eliminated, a decrease in work efficiency can be prevented, and it is economical. Furthermore, if you prepare multiple types of nonwoven fabrics or brush materials with different surface roughness, hardness, elasticity, etc., you can quickly change the roll to suit the purpose, making it easy to manufacture a wide variety of products. It has features such as being compatible with

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a first embodiment of the roll according to the present invention, FIG. 2 is a longitudinal sectional view of the roll shown in FIG. 1,
FIG. 3 is an exploded perspective view showing a roll half of the present invention, FIG. 4 is a sectional view taken along the line - in FIG. 2, and FIG. 5 is a perspective view of the second embodiment of the present invention. 6
This figure is an exploded perspective view showing the roll half shown in FIG. 5 in an exploded manner. 1... Roll, 2... Rotating shaft, 3, 4, 22,
23... Roll half body, 5, 8... Shaft half body, 6,
9, 24... Core half, 7, 10, 25... Non-woven fabric, 11, 12... Screw.

Claims (1)

[Claims for Utility Model Registration] A pair of axially divided screw holes having a hollow portion into which a rotating shaft is inserted and a plurality of screw insertion holes penetrating from the inner circumferential surface of the hollow portion to the outer circumferential surface. a fastening member that fastens the pair of shaft halves together so that the rotary shaft is inserted through the hollow portion and the outer periphery of the rotary shaft is sandwiched from two directions; and a synthetic resin. a pair of core halves, each of which is formed by dividing a cylinder formed by the above in the axial direction, and has a plurality of screw holes with female threads formed at positions corresponding to the screw insertion holes on the inner circumferential surface; a pair of nonwoven fabrics or brush materials, which are divided in the axial direction from a cylindrical body formed to fit on the outer periphery of the center core halves, and are adhesively fixed to the outer peripheries of the pair of center core halves; a plurality of core halves that are inserted into the screw insertion holes from the hollow portions and screwed into the screw holes of the core halves to fix the core halves to which the nonwoven fabric or brush material is fixed to the outer periphery of the shaft halves; and a fixing screw, when the nonwoven fabric or brush material is worn out, it is removed from the shaft half together with the core half, and the core half to which the unused nonwoven fabric or brush material is fixed is removed. A roll configured to be fixed to the outer periphery of the shaft half.